Automatic oilstone pressurization compensation device

Abstract

The utility model relates to an oilstone automatic pressurization compensation device which comprises a swing installation block, a pressurization driving assembly, a pressurization rod assembly and an oilstone assembly, the pressurization driving assembly and the oilstone assembly are installed on the swing installation block, the pressurization driving assembly comprises a pressurization air cylinder body, and a piston rod and at least one guide rod are movably arranged on the pressurization air cylinder body. The guide rod is parallel to the piston rod, the piston rod and the end, away from the pressurizing cylinder body, of the guide rod are connected with the pressurizing rod assembly, and the guide rod is shorter than the piston rod and can be separated from the pressurizing cylinder body; when the guide rod is inserted into the pressurizing cylinder body, the end, away from the piston rod, of the pressurizing rod assembly is opposite to the oilstone assembly. When the guide rod is separated from the pressurizing cylinder body, the pressurizing rod assembly can swing to the two sides of the oilstone assembly under the action of external force. The pressing rod assembly can stably push and press the oilstone assembly through the guide rod, and the pressing rod assembly can swing to the two sides of the oilstone assembly under the action of external force, so that oilstone replacement is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of bearing processing equipment, in particular to an automatic oilstone pressure compensation device. Background Art

[0002] The roughness of the bearing ring raceway directly affects the accuracy and performance of the bearing, so the final processing procedure of high-precision bearings in the prior art is super-finishing. The working principle of super-finishing is to grind the bearing ring raceway through an oilstone swinging mechanism. During the grinding process, the bearing ring rotates at a certain speed, and the oilstone is elastically pressed on the raceway surface with a certain pressure, and performs reciprocating swinging motion according to a certain pattern in a plane perpendicular to the direction of rotation of the bearing ring, thereby super-finishing the entire cross-section of the raceway.

[0003] During the grinding process, the oilstone serving as a tool will become shorter due to wear after a period of use, and the oilstone needs to be pushed forward by a pressure rod to keep the oilstone in good contact with the workpiece at all times; for example, the bearing ring superfinishing machine oilstone automatic compensation device disclosed in Chinese utility model patent CN201625920U, and the bearing raceway superfinishing swing head capable of monitoring the use status of the oilstone disclosed in Chinese invention patent application CN108972314A, both use an oilstone pressure rod to push the oilstone, thereby realizing automatic compensation for the oilstone tool wear.

[0004] However, the oilstone pressure rod in the prior art has no guiding device to guide it during its movement, so that the oilstone pressure rod is prone to swing to both sides when moving toward the oilstone, thereby affecting the stability of the oilstone pressure rod in pushing the oilstone, and further affecting the accuracy of the oilstone in processing the workpiece; in addition, since the oilstone needs to be replaced frequently, and the oilstone pressure rod is generally located at one end of the oilstone, that is, the oilstone pressure rod is located in the replacement path of the oilstone, it will hinder the replacement of the oilstone, thereby reducing the efficiency of the oilstone replacement.

[0005] Therefore, it is necessary to propose an automatic oilstone pressure compensation device to solve the above problems. Utility Model Content

[0006] The utility model aims to provide an automatic oilstone pressure compensation device to solve the problems in the prior art proposed in the above background technology that the oilstone pressure rod is prone to swing when moving toward the oilstone and the oilstone replacement efficiency is low.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] 14. The invention relates to an automatic pressure-added compensation device for an oilstone, comprising a swing mounting block, a pressure-added driving assembly, a pressure-added rod assembly and an oilstone assembly, wherein the pressure-added driving assembly and the oilstone assembly are both mounted on the swing mounting block, the pressure-added driving assembly comprises a pressure-added cylinder body, a piston rod and at least one guide rod are movably arranged on the pressure-added cylinder body, the guide rod is arranged in parallel with the piston rod, the piston rod and one end of the guide rod away from the pressure-added cylinder body are both connected to the pressure-added rod assembly, the piston rod drives the pressure-added rod assembly away from or close to the oilstone assembly, the length of the guide rod is less than the length of the piston rod and the guide rod can be separated from the pressure-added cylinder body; when the guide rod is inserted into the pressure-added cylinder body, the end of the pressure-added rod assembly away from the piston rod is opposite to the oilstone assembly; when the guide rod is separated from the pressure-added cylinder body, the pressure-added rod assembly can swing to both sides of the oilstone assembly under the action of external force.

[0009] Further, the piston rod is arranged in the middle of the pressurized cylinder body, the number of the guide rods is two, and the two guide rods are arranged at diagonal positions of the pressurized cylinder body.

[0010] Furthermore, the piston rod and the guide rod are both connected to a fixed block at one end away from the pressurized cylinder body, and the pressurized rod assembly is connected to the fixed block; when the guide rod is separated from the pressurized cylinder body, the fixed block can rotate relative to the piston rod under the action of external force.

[0011] Furthermore, the oilstone assembly includes an oilstone bracket, an oilstone clamp and an oilstone block, one end of the oilstone bracket is connected to the swing mounting block, the other end of the oilstone bracket is provided with a mounting hole, the oilstone clamp is fixed in the mounting hole, and the oilstone block is inserted in the oilstone clamp; the end of the pressure rod assembly away from the piston rod can press the top of the oilstone block.

[0012] Furthermore, the pressure rod assembly includes a first L-shaped rod and a second L-shaped rod, the first cross rod of the first L-shaped rod is connected to the fixed block, the first vertical rod of the first L-shaped rod is connected to the second cross rod of the second L-shaped rod at one end away from the first cross rod, and the second vertical rod of the second L-shaped rod is able to press the top of the oilstone at one end away from the second cross rod.

[0013] Furthermore, the piston rod, the first vertical rod, the second vertical rod and the oil stone are parallel to each other.

[0014] Furthermore, one end of the oilstone bracket connected to the swing mounting block is provided with a positioning protrusion or a positioning groove, and correspondingly, a matching positioning groove or positioning protrusion is provided at the connection between the swing mounting block and the oilstone bracket.

[0015] Furthermore, the oilstone automatic pressurization compensation device also includes a base and a swinging drive cylinder, the middle part of the swinging mounting block is hinged to one side of the base, the swinging drive cylinder is fixedly arranged at the bottom of the base, and the driving rod of the swinging drive cylinder passes through the base and is connected to one end of the swinging mounting block away from the oilstone assembly.

[0016] The beneficial effects of the utility model are as follows:

[0017] (1) By setting the guide rod, the pressure rod assembly is effectively prevented from swinging to both sides during movement, ensuring that the pressure rod assembly can move smoothly toward the oilstone assembly, thereby ensuring the stability of the pressure rod assembly pushing the oilstone assembly, and further ensuring the accuracy of the oilstone assembly in processing the workpiece;

[0018] (2) By setting the length of the guide rod to be smaller than the length of the piston rod and the guide rod being able to detach from the pressurized cylinder body, when the oilstone assembly needs to be replaced, the guide rod is detached from the pressurized cylinder body, and under the push of external force, the pressurized rod assembly is swung to both sides of the oilstone assembly, so that the pressurized rod assembly is away from the replacement path of the oilstone assembly, avoiding the pressurized rod assembly from interfering with the replacement of the oilstone assembly, thereby effectively improving the replacement efficiency of the oilstone assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the oilstone automatic pressure compensation device of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the guide rod of the pressurized drive assembly of the utility model when it is inserted into the pressurized cylinder body.

[0021] Figure 3 It is a structural schematic diagram of the guide rod of the pressurized drive assembly of the utility model when it is separated from the pressurized cylinder body.

[0022] Figure 4 It is a structural schematic diagram of the pressurizing drive assembly and the pressurizing rod assembly of the utility model.

[0023] Figure 5 It is a structural schematic diagram of the oilstone assembly of the utility model.

[0024] Figure 6 It is a structural schematic diagram of the swing mounting block, base and swing driving cylinder of the utility model.

[0025] Description of reference numerals:

[0026] 1-swing mounting block; 11-positioning groove; 2-pressurized drive assembly; 21-pressurized cylinder body; 22-piston rod; 23-guide rod; 24-fixed block; 3-pressurized rod assembly; 31-first L-shaped rod; 32-second L-shaped rod; 4-oilstone assembly; 41-oilstone bracket; 42-oilstone clamp; 43-oilstone block; 44-positioning protrusion; 5-base; 6-swing drive cylinder. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0028] like Figures 1 to 6 As shown, an automatic pressure compensation device for oilstones comprises a swing mounting block 1, a pressure driving assembly 2, a pressure rod assembly 3 and an oilstone assembly 4, wherein the pressure driving assembly 2 and the oilstone assembly 4 are both mounted on the swing mounting block 1, the pressure driving assembly 2 comprises a pressure cylinder body 21, a piston rod 22 and at least one guide rod 23 are movably arranged on the pressure cylinder body 21, the guide rod 23 is arranged parallel to the piston rod 22, and the piston rod 22 and the guide rod 23 are both at ends away from the pressure cylinder body 21 and at least one guide rod 23 is arranged parallel to the piston rod 22. The pressurized air cylinder body 21 is connected with the pressurized air cylinder body 21, and the piston rod 22 drives the pressurized air cylinder body 21 to move away from or approach the pressurized air cylinder body 21. The length of the guide rod 23 is less than the length of the piston rod 22 and the guide rod 23 can be separated from the pressurized air cylinder body 21. When the guide rod 23 is inserted into the pressurized air cylinder body 21, the end of the pressurized air cylinder body 21 away from the piston rod 22 is opposite to the oilstone assembly 4. When the guide rod 23 is separated from the pressurized air cylinder body 21, the pressurized air cylinder body 21 can swing to both sides of the oilstone assembly 4 under the action of external force.

[0029] In actual applications, when the oilstone assembly 4 performs super-fine grinding on the workpiece, the guide rod 23 is inserted into the pressurized cylinder body 21, and the piston rod 22 drives the pressurized rod assembly 3 to move in the direction close to the oilstone assembly 4 and the end of the pressurized rod assembly 3 away from the piston rod 22 is pressed against the oilstone assembly 4. As the oilstone assembly 4 is continuously worn, the piston rod 22 continuously drives the pressurized rod assembly 3 to move toward the oilstone assembly 4 to continuously push the oilstone assembly 4 toward the workpiece, so that the oilstone assembly 4 always maintains good contact with the workpiece; by providing the guide rod 23, the movement direction of the pressurized rod assembly 3 is guaranteed, and the pressurized rod assembly 3 is effectively prevented from swinging to both sides during the movement, thereby ensuring the stability of the pressurized rod assembly 3 in pushing the oilstone assembly 4, and further ensuring the oilstone assembly 4 on the workpiece When the oilstone assembly 4 needs to be replaced, the piston rod 22 drives the pressure rod assembly 3 to move away from the oilstone assembly 4. Since the length of the guide rod 23 is less than the length of the piston rod 22, when the piston rod 22 moves to a certain position, the guide rod 23 is separated from the pressurized cylinder body 21. At this time, due to the lack of the limit of the guide rod 23 and the pressure rod assembly 3 is only installed with the piston rod 22 through one mounting hole, the pressure rod assembly 3 can rotate relative to the piston rod 22 under the push of external force, that is, the pressure rod assembly 3 can be swung to both sides of the oilstone assembly 4, so that the pressure rod assembly 3 is away from the replacement path of the oilstone assembly 4, avoiding the pressure rod assembly 3 hindering the replacement of the oilstone assembly 4, thereby effectively improving the replacement efficiency of the oilstone assembly 4.

[0030] In this embodiment, by providing the guide rod 23, the pressure rod assembly 3 is effectively prevented from swinging to both sides during the movement, thereby ensuring that the pressure rod assembly 3 can move smoothly toward the oilstone assembly 4, thereby ensuring the stability of the pressure rod assembly 3 pushing the oilstone assembly 4, and then ensuring the accuracy of the oilstone assembly 4 processing the workpiece; further, by setting the length of the guide rod 23 to be less than the length of the piston rod 22 and the guide rod 23 being able to detach from the pressure cylinder body 21, when the oilstone assembly 4 needs to be replaced, the guide rod 23 is detached from the pressure cylinder body 21, and under the push of external force, the pressure rod assembly 3 is swung to both sides of the oilstone assembly 4, so that the pressure rod assembly 3 is away from the replacement path of the oilstone assembly 4, avoiding the pressure rod assembly 3 hindering the replacement of the oilstone assembly 4, thereby effectively improving the replacement efficiency of the oilstone assembly 4.

[0031] Preferably, the piston rod 22 is arranged in the middle of the pressurizing cylinder body 21, and the number of the guide rods 23 is two, and the two guide rods 23 are arranged at diagonal positions of the pressurizing cylinder body 21. Through the above arrangement, the driving force of the piston rod 22 on the pressurizing rod assembly 3 is more balanced, and the guiding effect of the guide rod 23 on the pressurizing rod assembly 3 is more stable.

[0032] Preferably, the piston rod 22 and the guide rod 23 are both connected to a fixing block 24 at one end away from the pressurized cylinder body 21, and the pressurized rod assembly 3 is connected to the fixing block 24; when the guide rod 23 is separated from the pressurized cylinder body 21, the fixing block 24 can rotate relative to the piston rod 22 under the action of an external force. In this embodiment, when the guide rod 23 is separated from the pressurized cylinder body 21, the fixing block 24 is caused to rotate relative to the piston rod 22 by the action of an external force, and because the pressurized rod assembly 3 is connected to the fixing block 24, the pressurized rod assembly 3 is also driven to rotate relative to the piston rod 22, so as to swing the pressurized rod assembly 3 to both sides of the oilstone assembly 4, so that the pressurized rod assembly 3 is away from the replacement path of the oilstone assembly 4. Exemplarily, guide rods 23 are fixedly connected to the left and right ends of the fixed block 24, respectively, a first connection hole is provided in the middle of the fixed block 24, the piston rod 22 is connected to the first connection hole through a connection piece such as a screw rod and a pin, and there is a gap between the connection piece and the first connection hole, a plurality of second connection holes are evenly provided around the outer side of the first connection hole, and the pressure rod assembly 3 is fixedly connected to the fixed block 24 through the second connection hole. When the guide rod 23 is separated from the pressurized cylinder body 21, there is no limiting effect between the guide rod 23 and the pressurized cylinder body 21, and because there is a gap between the connection piece and the first connection hole, the fixed block 24 can rotate relative to the piston rod 22 under the action of an external force, and the guide rod 23 and the pressure rod assembly 3 move together with the fixed block 24.

[0033] Preferably, the oilstone assembly 4 includes an oilstone bracket 41, an oilstone clamp 42 and an oilstone block 43, one end of the oilstone bracket 41 is connected to the swing mounting block 1, the other end of the oilstone bracket 41 is provided with a mounting hole, the oilstone clamp 42 is fixed in the mounting hole, and the oilstone block 43 is inserted in the oilstone clamp 42; the end of the pressure rod assembly 3 away from the piston rod 22 can press the top of the oilstone block 43. Specifically, a threaded connection through hole is provided at the end of the other end of the oilstone bracket 41, and the threaded connection through hole passes through the mounting hole. A threaded fastener is provided in the threaded connection through hole. By tightening the threaded fastener, the oilstone clamp 42 can be fixed in the mounting hole. When the oilstone block 43 needs to be replaced, the threaded fastener is loosened, and the oilstone clamp 42 together with the oilstone block 43 can be taken out from the top of the oilstone bracket 41, and then the oilstone block 43 in the oilstone clamp 42 is replaced, and then the oilstone clamp 42 together with the oilstone block 43 is installed into the mounting hole from the top of the oilstone bracket 41, and the threaded fastener is tightened again to complete the replacement of the oilstone block 43. Since the pressure rod assembly 3 is located above the oilstone bracket 41, when replacing the oilstone 43, the guide rod 23 is first separated from the pressure cylinder body 21, and then the pressure rod assembly 3 is swung to both sides of the oilstone assembly 4, so that the pressure rod assembly 3 is away from the replacement path of the oilstone 43, avoiding the pressure rod assembly 3 from interfering with the replacement of the oilstone 43, thereby effectively improving the replacement efficiency of the oilstone 43.

[0034] Preferably, the pressure rod assembly 3 includes a first L-shaped rod 31 and a second L-shaped rod 32, the first cross bar of the first L-shaped rod 31 is connected to the fixed block 24, the first vertical rod of the first L-shaped rod 31 is connected to the second cross bar of the second L-shaped rod 32 at one end away from the first cross bar, and the second vertical rod of the second L-shaped rod 32 is able to press against the top of the oil stone 43 at one end away from the second cross bar. Specifically, the piston rod 22, the first vertical rod, the second vertical rod and the oil stone 43 are parallel to each other. Through the above arrangement, the movement direction of the piston rod 22, the first vertical rod and the second vertical rod is parallel to the movement direction of the oil stone 43, which is conducive to the piston rod 22 driving the second vertical rod to apply a pushing force on the oil stone 43 and drive the oil stone 43 to move toward the workpiece.

[0035] Preferably, a positioning protrusion 44 or a positioning groove is provided at one end of the oilstone bracket 41 connected to the swing mounting block 1, and correspondingly, a matching positioning groove 11 or a positioning protrusion is provided at the connection between the swing mounting block 1 and the oilstone bracket 41. By providing the positioning groove 11 and the positioning protrusion 44 that match each other, it is beneficial to quickly and accurately position the oilstone assembly 4 when it is installed on the swing mounting block 1, thereby ensuring the installation accuracy.

[0036] Preferably, the oilstone automatic pressure compensation device further comprises a base 5 and a swing drive cylinder 6, the middle part of the swing mounting block 1 is hinged to one side of the base 5, the swing drive cylinder 6 is fixedly arranged at the bottom of the base 5, and the drive rod of the swing drive cylinder 6 penetrates the base 5 and is connected to the end of the swing mounting block 1 away from the oilstone assembly 4. In this embodiment, the base 5 is connected to the body of the external superfinishing grinder, and the drive rod of the swing drive cylinder 6 drives the end of the swing mounting block 1 away from the oilstone assembly 4 to move up and down. Since the pressure drive assembly 2, the pressure rod assembly 3 and the oilstone assembly 4 are directly or indirectly arranged on the swing mounting block 1, the pressure drive assembly 2, the pressure rod assembly 3 and the oilstone assembly 4 move up and down together with the swing mounting block 1, so that the oilstone assembly 4 performs reciprocating swinging motion according to a certain rule in a plane perpendicular to the direction of rotation of the bearing ring, and then the entire cross section of the bearing ring raceway is superfinished to ensure the accuracy of the entire cross section of the bearing ring raceway.

[0037] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An automatic pressure compensation device for oilstone, characterized in that: The invention comprises a swing mounting block (1), a pressurizing drive assembly (2), a pressurizing rod assembly (3) and an oil stone assembly (4), wherein the pressurizing drive assembly (2) and the oil stone assembly (4) are both mounted on the swing mounting block (1), the pressurizing drive assembly (2) comprises a pressurizing cylinder body (21), a piston rod (22) and at least one guide rod (23) are movably arranged on the pressurizing cylinder body (21), the guide rod (23) is arranged parallel to the piston rod (22), and the ends of the piston rod (22) and the guide rod (23) away from the pressurizing cylinder body (21) are both connected to the pressurizing rod assembly (3), The piston rod (22) drives the pressurizing rod assembly (3) to move away from or towards the oilstone assembly (4); the length of the guide rod (23) is less than the length of the piston rod (22) and the guide rod (23) can be separated from the pressurizing cylinder body (21); when the guide rod (23) is inserted into the pressurizing cylinder body (21), the end of the pressurizing rod assembly (3) away from the piston rod (22) is opposite to the oilstone assembly (4); when the guide rod (23) is separated from the pressurizing cylinder body (21), the pressurizing rod assembly (3) can swing to both sides of the oilstone assembly (4) under the action of external force.

2. The oilstone automatic pressure compensation device according to claim 1 is characterized in that: The piston rod (22) is arranged in the middle of the pressurizing cylinder body (21), the number of the guide rods (23) is two, and the two guide rods (23) are arranged at diagonal positions of the pressurizing cylinder body (21).

3. The oilstone automatic pressure compensation device according to claim 1 is characterized in that: The piston rod (22) and the guide rod (23) are both connected to a fixing block (24) at one end away from the pressurizing cylinder body (21), and the pressurizing rod assembly (3) is connected to the fixing block (24); when the guide rod (23) is separated from the pressurizing cylinder body (21), the fixing block (24) can rotate relative to the piston rod (22) under the action of an external force.

4. The oilstone automatic pressure compensation device according to claim 3 is characterized in that: The oilstone assembly (4) comprises an oilstone bracket (41), an oilstone clamp (42) and an oilstone block (43); one end of the oilstone bracket (41) is connected to the swing mounting block (1); the other end of the oilstone bracket (41) is provided with a mounting hole; the oilstone clamp (42) is fixed in the mounting hole; and the oilstone block (43) is inserted in the oilstone clamp (42); the end of the pressure rod assembly (3) away from the piston rod (22) can press against the top of the oilstone block (43).

5. The automatic pressure compensation device for oilstone according to claim 4 is characterized in that: The pressure rod assembly (3) comprises a first L-shaped rod (31) and a second L-shaped rod (32); the first cross rod of the first L-shaped rod (31) is connected to the fixed block (24); the first vertical rod of the first L-shaped rod (31) is connected to the second cross rod of the second L-shaped rod (32) at one end away from the first cross rod; and the second vertical rod of the second L-shaped rod (32) is capable of pressing against the top of the oilstone (43) at one end away from the second cross rod.

6. The automatic pressure compensation device for oilstone according to claim 5 is characterized in that: The piston rod (22), the first vertical rod, the second vertical rod and the oil stone (43) are parallel to each other.

7. The automatic pressure compensation device for oilstone according to claim 4 is characterized in that: One end of the oilstone bracket (41) connected to the swing mounting block (1) is provided with a positioning protrusion (44) or a positioning groove, and correspondingly, the connection between the swing mounting block (1) and the oilstone bracket (41) is provided with a matching positioning groove (11) or a positioning protrusion.

8. The oilstone automatic pressure compensation device according to claim 1 is characterized in that: The oilstone automatic pressure compensation device also includes a base (5) and a swing drive cylinder (6), the middle part of the swing mounting block (1) is hinged to one side of the base (5), the swing drive cylinder (6) is fixedly arranged at the bottom of the base (5), and the drive rod of the swing drive cylinder (6) passes through the base (5) and is connected to one end of the swing mounting block (1) away from the oilstone assembly (4).

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